attendant vs running dog

attendant

noun
  • One who owes a duty or service to another. 

  • One who attends; one who works with or watches over something. 

  • That which accompanies or follows. 

  • A servant or valet. 

adj
  • Depending on, or owing duty or service to. 

  • Going with; associated; concomitant. 

running dog

noun
  • A lackey; a lapdog; an unprincipled person who helps or flatters other, more powerful and often evil people. 

How often have the words attendant and running dog occurred in a corpus of books? (source: Google Ngram Viewer )